In the case of PSR, the potential has to be "recovered" from a conformal transformation. This fact allows to compare models with analogue ones in the minimal coupling regime where Einstein gravity is improved with scalar field dynamics. As we have shown, in the case of \(f(Q)\) , the validity of conformal transformations strictly depends on the field regime. As discussed above, the presence of the third term in the action (REF ) gives rise to an additional scalar-non-metricity coupling which cannot be removed by a standard conformal transformation. This means that \(f(Q)\)  models are not dynamically equivalent to the STEGR action plus a scalar field via a conformal transformation like in the metric case of \(f(R)\)  gravity where GR plus a scalar field is fully recovered. In the \(f(Q)\)  case, the standard conformal structure is recovered in high-energy regime while it breaks in the weak field limit. This fact is not immediately comparable with observations because "observables" cannot be easily selected but it can be relevant from a conceptual point of view. In fact, the emergence of the third term in (REF ) could be the signal of the exit from inflation pointing out a symmetry breaking leading to the post-inflationary universe. From a general viewpoint, the fact that isometries are not requested at the foundation of non-metric gravity [1]} could an advantage related to the intrinsic meaning of inflationary mechanism: here "scales" are changing and they do not necessarily have to change "isometrically". Furthermore, also the Equivalence Principle is not required "a priori" so also possible violations in some phase transition could be considered in \(f(Q)\)  dynamics.
